橄榄修剪木提取物对葵花籽油脂质氧化的影响。

Q2 Agricultural and Biological Sciences

Ciencia E Investigacion Agraria Pub Date : 2017-12-27 DOI:10.7764/RCIA.V44I3.1786

P. González, M. C. Zúñiga, C. Olea‐Azar, C. Loyola, C. Folch-Cano

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引用次数: 2

摘要

P. Gonzalez-Fuentes, M. Zuniga, C. Olea-Azar, M. Loyola和C. Folch-Cano。2017. 橄榄修剪木提取物对葵花籽油脂质氧化的影响。Cien。Agr发票。对橄榄剪枝木提取物制备优质天然抗氧化剂及其在防止植物油氧化中的应用进行了评价。采用索氏提取法和乙醇提取法对橄榄剪枝木(OPW)中抗氧化剂的提取工艺进行了优化，分别考察了干燥和新鲜的OPW，提取初始质量为1和3 g，提取时间为2、4和8 h。为评价OPW提取物(OPWE)的抗氧化性，采用DPPH自由基漂白法和ORAC-FL法。此外，用HPLC-DAD法测定了OPWE的酚类成分，用Folin-Ciocalteu法测定了总酚类成分。用1 g初始质量的干燥OPW得到的OPWE与新鲜OPW相比，酚类化合物含量最高，抗氧化能力更好。两种提取物均表现出相同的特征，但从干燥的OPW中获得的OPWE显示出两倍的儿茶素(1.00 g /100 g OPWE)和橄榄油蛋白(12.59 g /100 g OPWE)浓度。通过微波加热过氧化值测定，低浓度优化后的OPWE对葵花籽油的脂质氧化具有抑制作用。在高温和高浓度条件下，结果表明OPWE可能呈现相反的效果。

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Effect of the Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil.

P. Gonzalez-Fuentes, M. Zuniga, C. Olea-Azar, M. Loyola and C. Folch-Cano. 2017. Effect of the Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil. Cien. Inv. Agr. The production of high quality natural antioxidants from olive pruning wood extracts and their application to prevent the oxidation of vegetable oils were evaluated. The extraction of antioxidants from olive pruning wood (OPW) using Soxhlet extraction and ethanol was optimized, evaluating the use of dry and fresh OPW, extraction initial mass of 1 and 3 g, and extraction time of 2, 4 and 8 h. For the antioxidant evaluation of the OPW extracts (OPWE) the DPPH radical bleaching and ORAC-FL assays were performed. Additionally, the phenolic profile of the OPWE by HPLC-DAD was obtained and total phenolic composition was quantified by the Folin-Ciocalteu assay. The OPWE obtained from dry OPW and using 1 g of initial mass showed the highest content of phenolic compounds and better antioxidant capacity compared to those obtained from fresh OPW. Both extracts showed the same profiles, but the OPWE obtained from dry OPW showed twice the concentrations of catechin (1.00 g /100 g OPWE) and oleorupein (12.59 g /100 g OPWE). Low concentrations of optimized OPWE showed activity against lipid oxidation of sunflower oil, measured by the peroxide value by microwave heating. Under high temperature conditions and concentrations, the results suggest that OPWE may present the opposite effect.

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来源期刊

Ciencia E Investigacion Agraria 农林科学-农业综合

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The subject matter that is considered to be appropriate for publication in International Journal of Agriculture and Natural Resources (formerly Ciencia e Investigación Agraria) is all new scientific and technological research in agriculture, animal production, forestry, natural resources and other related fields.